MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Physics Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Two cylindrical pipes having radius 2m and 5m are placed coaxially. The inner cylinder has total charge 1C and the outer sphere has total charge 2C. What will be the nature of electric field intensities at different distances from the axis of the cylinders? |
| A. | a) |
| Answer» D. | |
| 2. |
Gauss’s Law cannot be applied in a medium that has relative permittivity greater than 1. This statement is ________ |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Net inward and outward flux of a closed surface are ∅1 and ∅2. What is the charge enclosed inside the surface? |
| A. | Zero |
| B. | -(∅1-∅2)εo |
| C. | (∅1-∅2)εo |
| D. | \(\frac {(\phi_1 + \phi_2)}{\varepsilon_o}\) |
| Answer» C. (∅1-∅2)εo | |
| 4. |
A non-conducting cube of side length 1m has a spherical cavity of radius 0.1m inside it. The system has a charge density of 2.5 C/m3. What is the total flux coming out of the surface of the cube? |
| A. | 2.8*1031 Nm2C-1 |
| B. | 2.8*1011 Nm2C-1 |
| C. | 5.7*1011 Nm2C-1 |
| D. | 0.2*1011 Nm2C-1 |
| Answer» C. 5.7*1011 Nm2C-1 | |
| 5. |
Gauss’s Law cannot be applied in ________ |
| A. | Hollow sphere |
| B. | Solid sphere |
| C. | Cube |
| D. | Unbounded surface |
| Answer» E. | |
| 6. |
Electric flux coming out of a single Na+ ion is _________ Nm2C-1 |
| A. | 1.8*10-8 |
| B. | 1.8*10-10 |
| C. | 5.4*10-8 |
| D. | 3.6*10-8 |
| Answer» B. 1.8*10-10 | |